Line a very small loaf pan with cling film for easy removal.
Mix all ingredients together in a large bowl until smooth. Slowly add the rice or millet crisps and incorporate everything well.
With a spoon or a spatula, pour the mixture into the prepared pan and smooth out.
Freeze for about 15 to 20 minutes, or until solid.
Slice into squares and garnish with the suggested ingredients.
Enjoy!